1 Set Up How to obtain and install NCSA Mosaic for the X Window Sys- tem is explained as are the additional resources you need for full functionality. How to Obtain NCSA Mosaic From Anonymous FTP The binary executables for NCSA Mosaic for the X Window System software are on NCSAÕs anonymous FTP server (ftp.ncsa.uiuc.edu) in the /Mosaic/Mosaic-binaries directory. Refer to the README-binaries file for the current version information, and copy the appropriate files to your system. Source code is in the /Mosaic/Mosaic-source directory. Technical information is in the /Mosaic/mosaic-papers direc- tory. From NCSA by Mail Software and documentation are also available for purchase from NCSA. Contact NCSA Orders by electronic mail at orders@ncsa.uiuc.edu or by phone at (217) 244-4130 for pricing information. The NCSA Technical Resources Catalog (TRC), which is pub- lished biannually, lists NCSA software, documentation, infor- mational packets, preprints and technical reports, magazines, and multimedia available for purchase. The TRC is also avail- able on the three NCSA servers (World Wide Web, Gopher, and anonymous FTP). See ÒNCSA Server AddressesÓ on pageÊCÐ2. From a Friend Because NCSA Mosaic is free for individual use, you may obtain a copy of the software from a friend or colleague. Remember that NCSA and the University of Illinois retain the rights to restrict the modification and redistribution of this software for commercial purposes. See ÒCopyrightÓ on pageÊii for full information. How to Install System Requirements NCSA Mosaic for the X Window System can be used on most UNIX-based workstations (e.g., Sun SPARC, IBM RS/6000, SGI, DEC). NOTE: If you are using a Sun workstation with OpenWindows, warnings may be displayed when you start up NCSA Mosaic. You may need a special library to make your network connec- tions. The warnings messages are not serious, and the pro- gram should start with no lost functionality. When you have NCSA Mosaic working, go to the Help menu and select the On FAQ (Frequently Asked Questions). In the resulting window, select Something is broken. This document addresses the warn- ing messages and steps to take to resolve the problem. Other Software You Need for Full Functionality NCSA Mosaic uses external viewers to display the variety of data file formats (images, video, audio, PostScript) on the Internet. For NCSA Mosaic to display these files, the external viewers listed below are recommended. (Other viewers are available and may be used.) If you need information about installing external viewers, talk with your local system administrator. In general, you need to uncompress, untar, and compile the files obtained from the anonymous FTP servers. Not all viewers work well with all machines. The README file in the software directory usually contains information about hardware compatibility. Select Manual from the Help menu for additional information about viewers. ghostview ghostview is the user interface to the ghostscript viewer for PostScript ÒtypesetÓ documents. ghostview may be obtained from the UIUC anonymous FTP server (uxc.cso.uiuc.edu). Download the following files: ¥ /gnu/ghostscript-2.5.2.tar.Z ¥ /gnu/ghostscript-fonts-2.5.2.tar.Z ¥ /gnu/ghostview-1.4.1.tar mpeg-play mpeg-play displays MPEG-format animation sequences and video clips. mpeg-play may be obtained from the University of California at BerkeleyÕs anonymous FTP server (toe.cs.berkeley.edu). Download the following file: ¥ /pub/multimedia/mpeg/mpeg_play-2.0.tar.Z showaudio and metamail showaudio is a shell script that can play several audio formats on several platforms and is part of the metamail multimedia mail toolkit. metamail processes multimedia documents in the MIME format. Obtain metamail from BellcoreÕs anony- mous FTP server (thumper.bellcore.com). Download the fol- lowing file (where x refers to the specific version currently available): ¥ /pub/nsb/mm2.x.tar.Z xdvi xdvi is a viewer for documents in the DVI format produced by TeX. The xdvi viewer is available from this anonymous FTP server (ftp.x.org). Download the following file: ¥ /contrib/xdvi.tar.Z xv xv is an image display and manipulation utility for GIF, JPEG, TIFF, and several other formats of image files. Connect to this anonymous FTP server (ftp.cis.upenn.edu) and change to the directory listed below tocopy the program: ¥ /pub/xv Getting Started Enter mosaic at the prompt to start up NCSA Mosaic on your machine. The first window, which is retrieved from the NCSA Web server, displays the NCSA Mosaic Home Page with the NCSA Mosaic logo at the top as shown in Figure 1.1. (A Home Page is a start-up document that serves as your home base for explorations on the Web.) The NCSA Mosaic Home Page contains a welcome statement and some basic information about NCSA, the NCSA Software Development Group, and NCSA Mosaic software. From this page you can move anywhere by single clicking on the embed- ded hyperlinks, choosing menu options, or entering a Uniform Resource Locator (URLÑsee ÒThe URL FormatÓ on pageÊ3Ð4) for a document of your choosing. Figure 1.1 NCSA Mosaic Logo If you receive an error message instead of the NCSA Mosaic Home Page, you may have an incomplete connection to the Internet. Other possibilities include NCSAÕs Web server being heavily utilized resulting in a Òbusy signal,Ó your local system administrator may have changed the default home page, or, if you are using a Sun workstation, you may have a version con- flict with one of the libraries. Contact your local system administrator for more information and for assistance in modifying your system configuration. .Xdefaults file Some NCSA Mosaic options, such as the name of the file track- ing all the documents you have accessed, can be changed if you establish an .Xdefaults file. To see the various options, choose Manual from the Help menu, or see ÒSystem Configuration and Modification AssistanceÓ on pageÊCÐ1 for additional information.